Vehicle air chamber bracket fixing fixture

Abstract

The invention relates to the technical field of vehicle part machining, in particular to a vehicle air chamber bracket fixing fixture. The vehicle air chamber bracket fixing fixture comprises a base and a convex insert; a fixed base is arranged above the base; a small-diameter end of the insert penetrates through a through hole in the middle part of the fixed base, and is fixedly connected with the base; a first groove is formed in the middle part of the fixed base; a gap is formed in the upper part of the first groove, and is provided with a similar n-shaped pressing device; a second groove is formed in the side wall of the first groove; a third groove is formed under the first groove; and a first thread hole is formed in the top of the pressing device. The base of an air chamber bracketis fixed by the fixed base; a support arm extends out from the gap; after the pressing device presses the air chamber bracket, the air chamber bracket is fixed by a first screw rod; and finally, an outer circle of the base and each hole are machined. The vehicle air chamber bracket fixing fixture once clamps workpieces to realize synchronous machining of the outer circle and each hole, improves the machining precision, reduces the product rejection rate, relieves the labor intensity, and improves the working efficiency.

Description

technical field [0001] The invention relates to the technical field of auto parts processing, in particular to a fixing fixture for an auto air chamber bracket. Background technique [0002] The brake air chamber is also called the brake cylinder, and its function is to convert the pressure of the compressed air into a mechanical force that rotates the brake camshaft, so that the camshaft pushes the friction plate in the brake shoe assembly to contact the brake drum. Realize the braking action of the car. The air chamber bracket has two main functions, one is used to connect the brake air chamber and the axle to ensure that the thrust output by the brake air chamber is transmitted to the axle brake system in a certain form, and the other is used for positioning, installation and control. Move the camshaft and ensure the rotation of the brake camshaft. [0003] Such as figure 1 and figure 2 As shown, the air chamber bracket includes a support arm and a base. The base inc...

AI Technical Summary

Problems solved by technology

Due to the special structure of the air chamber support, when drilling the three through holes of the base, it is difficult to ensure that the central axes of the three through holes of the air chamber support are in the same plane, and it is difficult to reduce the plane of the central axes of the three through holes in the same batch of products The angle error between the vertical surface and the need to use multiple fixtures during processing, multiple clamping, different positioning references, it is difficult to ensure the coaxiality of the outer circle of the large cylinder and the mounting hole increases the product scrap rate, Increase labor intensity and operation difficulty

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